CPC .25x.25 Daily US UNIFIED Precipitation

Federal Geographic Data Committee (FGDC) Metadata:

• Identification_Information
• Data_Quality_Information
• Spatial_Reference_Information
• Distribution_Information
• Metadata_Reference_Information

Identification_Information:

Citation:

Citation_Information:

Originator: NOAA-CIRES Climate Diagnostics Center

Publication_Date: Unknown

Title: CPC .25x.25 Daily US UNIFIED Precipitation

Edition:

Geospatial_Data_Presentation_Form:

Series_Information:

Series_Name:

Issue_Identification:

Publication_Information:

Publication_Place: Boulder, CO

Publisher: NOAA-CIRES Climate Diagnostics Center

Other_Citation_Details:

Online_Linkage: http://www.cdc.noaa.gov/cdc/data.unified.html

Description:

Abstract:

Dataset is derived from 3 sources: NCDC daily co-op stations (1948-...), CPC dataset (River Forecast Centers data + 1st order stations - 1992-...), and daily accumulations from hourly precipitation dataset (1948-...). There are about 13000 station reports each day for 1992-..., and about 8000 reports before that yielding about 3x the reports of any existing historic and operational analyses as of 2000. Future versions of the unified will also include any other raingauge precip datasets. The data were QC-ed to eliminate duplicates and overlapping stations, and standard deviation and buddy checks were applied.. Then they were gridded into 0.25x 0.25, 140W-60W, 20N-60N using a Cressman Scheme. Landmask is such that actual data resides between 20N-49.5N (lat grids 1-118) and 233.75E to 292.75 (lon grids 56-292). Values are for over the continental US. Data is daily from 1948-1998 and with no missing grids. A land-sea mask is supplied. NOAAServer Codes: [POL 20 60 -140 -60] ; dateline preview obtain Storage Medium - Online Scientific research.

Purpose:

Not Available

Supplemental_Information:

REFERENCE: Higgins, et al., R. W., 2000: Improved US Precipitation Quality Control System and Analysis. NCEP/Climate Prediction Center ATLAS No. 6 (in preparation). Available on-line: "http://www.cpc.ncep.noaa.gov/research_papers/ncep_cpc_atlas/7/index.html" . Higgins, R. W., J. E. Janowiak, and Y.-P. Yao, 1996: A gridded hourly precipitation data base for the United States (1963-1993). NCEP/Climate Prediction Center Atlas 1, national Centers for Environmental Prediction, 46pp.

Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 19480101

Ending_Date: 19981231

Currentness_Reference:Unknown

Status:

Progress: Complete

Maintenance_and_Update_Frequency: As needed

Spatial_Domain:

Description_of_Geographic_Extent:

Bounding_Coordinates:

West_Bounding_Coordinate: -140.0

East_Bounding_Coordinate: -60.0

North_Bounding_Coordinate: 60.0

South_Bounding_Coordinate: 20.0

Keywords:

Theme:

Theme_Keyword_Thesaurus: GCMD SCIENCE PARAMETERS

Theme_Keyword_Thesaurus: ANCILLARY KEYWORDS

Theme_Keyword_Thesaurus: ISO TOPIC CATEGORY

Theme_Keyword_Thesaurus: DATA SET LANGUAGE

Theme_Keyword: EARTH SCIENCE > ATMOSPHERE > PRECIPITATION > PRECIPITATION AMOUNT

Theme_Keyword: Cpc .25x.25 Daily Us Unified Precipitation [pol 20.00 60.00 -140 -60]

Theme_Keyword: Precipitation

Theme_Keyword: CLIMATOLOGY/METEOROLOGY/ATMOSPHERE

Theme_Keyword: ENGLISH

Place:

Place_Keyword_Thesaurus: GCMD

Place_Keyword: CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA

Access_Constraints: None.

Use_Constraints:

None. Acknowledgement of CDC would appreciated in products derived from these data.

Point_of_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: ESRL/PSD DATA INQUIRIES

Contact_Position: TECHNICAL CONTACT

Contact_Position: DIF AUTHOR

Contact_Address:

Address_Type: Mailing and Physical Address

Contact_Electronic_Mail_Address: esrl.psd.data@noaa.gov

Data_Quality_Information:

Attribute_Accuracy:

Attribute_Accuracy_Report:

Not Available

Logical_Consistency_Report:

Not Available

Completeness_Report:

Not Available

Lineage:

Process_Step:

Process_Description:

Not Available

Process_Date: Unknown

Spatial_Reference_Information:

Horizontal_Coordinate_System_Definition:

Geographic:

Latitude_Resolution: 0.25 degree

Longitude_Resolution: 0.25 degree

Geographic_Coordinate_Units: Decimal degrees

Distribution_Information:

Distributor:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: DOC/NOAA/OAR/ESRL/PSD/CAB > Climate Analysis Branch, Physical Sciences Division, Earth System Research Laboratory, OAR, NOAA, U.S. Department of Commerce

Contact_Person: ESRL/PSD DATA INQUIRIES

Contact_Position: DATA CENTER CONTACT

Contact_Address:

Address_Type: Mailing and Physical Address

Contact_Electronic_Mail_Address: esrl.psd.data@noaa.gov

Resource_Description: CDC053

Distribution_Liability:

Not Available

Standard_Order_Process:

Digital_Form:

Digital_Transfer_Information:

Format_Name: Not Available

Digital_Transfer_Option:

Online_Option:

Computer_Contact_Information:

Network_Address:

Network_Resource_Name:

http://www.esrl.noaa.gov/psd/psd1/

Access_Instructions:

DATA CENTER URL

Digital_Transfer_Option:

Online_Option:

Computer_Contact_Information:

Network_Address:

Network_Resource_Name:

http://www.cdc.noaa.gov/data/gridded/data.unified....

Access_Instructions:

Obtain this data set via HTML

Digital_Transfer_Option:

Online_Option:

Computer_Contact_Information:

Network_Address:

Network_Resource_Name:

ftp://ftp.cdc.noaa.gov/Datasets/cpc_us_precip/

Access_Instructions:

Obtain this data set via FTP.

Fees: Not Available

Metadata_Reference_Information:

Metadata_Date: 20020325

Metadata_Review_Date: 20090715

Metadata_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: ESRL/PSD DATA INQUIRIES

Contact_Position: TECHNICAL CONTACT

Contact_Position: DIF AUTHOR

Contact_Address:

Address_Type: Mailing and Physical Address

Contact_Electronic_Mail_Address: esrl.psd.data@noaa.gov

Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata

Metadata_Standard_Version: FGDC-STD-001-1998

Metadata_Time_Convention: local time